{"product_id":"omegon-pro-apo-104-650-ed-triplet-refractor","title":"Omegon Pro APO AP 104\/650 ED Triplet Refractor OTA","description":"\u003cp\u003e\u003cstrong\u003ePremium 104mm triplet apochromatic refractor for serious astrophotography and high-contrast visual astronomy.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Omegon Pro APO AP 104\/650 ED is a high-performance triplet refractor combining a 104mm aperture, 650mm focal length and premium ED glass in a compact, precision-built optical tube. Designed for demanding astrophotographers and experienced observers, it delivers sharp, high-contrast and exceptionally well-corrected images of the night sky.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f5f5f5;padding:16px 18px;margin:20px 0;border-radius:6px;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong\u003eChoose your version\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eThe Omegon Pro APO 104\/650 is available \u003cstrong\u003ewith or without the 2\" field flattener\u003c\/strong\u003e. Simply select your preferred \u003cstrong\u003eCorrector\u003c\/strong\u003e option when ordering. For astrophotography with larger camera sensors, the field flattener option provides improved correction towards the edges of the image.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eOmegon Pro APO 104\/650 ED – Highlights\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e104mm triplet ED apochromatic refractor\u003c\/li\u003e\n\u003cli\u003e650mm focal length and fast f\/6.25 focal ratio\u003c\/li\u003e\n\u003cli\u003ePremium FPL-53 and FPL-51 ED glass\u003c\/li\u003e\n\u003cli\u003eExcellent colour correction and high image contrast\u003c\/li\u003e\n\u003cli\u003eLarge 2.9\" focuser for demanding imaging equipment\u003c\/li\u003e\n\u003cli\u003e1:10 fine-focus reduction for precise focusing\u003c\/li\u003e\n\u003cli\u003e360° rotating focuser for accurate camera framing\u003c\/li\u003e\n\u003cli\u003eGenerous 175mm back focus\u003c\/li\u003e\n\u003cli\u003eRetractable dew shield for easier transport and storage\u003c\/li\u003e\n\u003cli\u003eCNC-machined tube rings\u003c\/li\u003e\n\u003cli\u003eAvailable with or without a 2\" field flattener\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener_4.jpg?v=1787648133\" alt=\"Omegon Pro APO AP 104\/650 ED triplet apochromatic refractor\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003ePremium Triplet ED Optics\u003c\/h2\u003e\n\n\u003cp\u003eAt the heart of the Omegon Pro APO 104\/650 is a sophisticated air-spaced triplet objective incorporating premium \u003cstrong\u003eFPL-53 and FPL-51 ED glass\u003c\/strong\u003e. This optical design is engineered to minimise chromatic aberration and produce a highly colour-corrected image with excellent contrast and fine detail.\u003c\/p\u003e\n\n\u003cp\u003eFor astrophotographers, that means cleaner star colours, excellent definition and detailed deep-sky images. Visual observers also benefit from the unobstructed refractor design when exploring the Moon, planets, double stars and brighter deep-sky objects.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener_10.jpg?v=1787648134\" alt=\"Omegon Pro APO 104mm triplet ED refractor optics\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003e104mm Aperture with a Fast f\/6.25 Focal Ratio\u003c\/h2\u003e\n\n\u003cp\u003eThe combination of a \u003cstrong\u003e104mm aperture and 650mm focal length\u003c\/strong\u003e gives the Pro APO an f\/6.25 focal ratio, making it an attractive platform for deep-sky astrophotography while retaining enough focal length for smaller astronomical targets.\u003c\/p\u003e\n\n\u003cp\u003eIts 650mm focal length provides a useful balance between field of view and image scale, making the telescope suitable for imaging nebulae, galaxies, open clusters and many other deep-sky objects.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener_3.jpg?v=1787648135\" alt=\"Omegon Pro APO 104\/650 astrophotography refractor telescope\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eLarge 2.9\" Precision Focuser\u003c\/h2\u003e\n\n\u003cp\u003eA premium optical system deserves a focuser capable of supporting modern astrophotography equipment. The Pro APO 104\/650 is equipped with a large \u003cstrong\u003e2.9\" focuser\u003c\/strong\u003e designed to accommodate substantial imaging trains while maintaining smooth and accurate focusing.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e1:10 fine-focus reduction\u003c\/strong\u003e provides precise control around critical focus. This is particularly useful when working with high-resolution astronomy cameras where even a very small focus adjustment can make a visible difference to image sharpness.\u003c\/p\u003e\n\n\u003cp\u003eThe focuser provides an adjustment range of approximately \u003cstrong\u003e95mm\u003c\/strong\u003e together with a generous \u003cstrong\u003e175mm back focus\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener_11.jpg?v=1787648134\" alt=\"Omegon Pro APO 104\/650 dual speed precision focuser\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003e360° Rotation for Better Camera Framing\u003c\/h2\u003e\n\n\u003cp\u003eFinding the target is only part of creating a great astrophotograph. The orientation of the camera sensor can be equally important when framing large nebulae, galaxies and star fields.\u003c\/p\u003e\n\n\u003cp\u003eThe Pro APO's focuser can be \u003cstrong\u003erotated through 360°\u003c\/strong\u003e, allowing the camera orientation to be adjusted without having to reposition the entire telescope. This makes it considerably easier to achieve the composition you want.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener.jpg?v=1787648135\" alt=\"Omegon Pro APO 104 rotating focuser and optical tube\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eOptional 2\" Field Flattener\u003c\/h2\u003e\n\n\u003cp\u003eThe Pro APO 104\/650 can be ordered either \u003cstrong\u003ewithout a corrector\u003c\/strong\u003e or \u003cstrong\u003ewith the 2\" field flattener\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eField curvature can become increasingly noticeable towards the edges of an astrophotograph, particularly when larger camera sensors are used. A field flattener is designed to correct this curvature so stars remain better defined towards the edges and corners of the photographic field.\u003c\/p\u003e\n\n\u003cp\u003eThe flattener uses \u003cstrong\u003eM48 connections\u003c\/strong\u003e, providing a larger clear aperture than a conventional M42\/T2 connection, and its optical surfaces are multi-coated to minimise unwanted reflections.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIf you require the field flattener, select “With 2\" Field Flattener” from the Corrector options before adding the telescope to your basket.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener_9.jpg?v=1787648135\" alt=\"Omegon 2 inch field flattener for Pro APO astrophotography refractor\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003ePrecision-Built Optical Tube\u003c\/h2\u003e\n\n\u003cp\u003eThe optical system is housed in a precision-built tube designed for demanding astronomical use. Internal baffling helps suppress unwanted stray light and reflections, contributing to the high contrast expected from a premium apochromatic refractor.\u003c\/p\u003e\n\n\u003cp\u003eA retractable dew shield helps protect the objective from stray light and dew while also reducing the telescope's overall length for transport and storage.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener_1.jpg?v=1787648133\" alt=\"Omegon Pro APO 104\/650 ED optical tube and retractable dew shield\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eMade for Astrophotography\u003c\/h2\u003e\n\n\u003cp\u003eThe combination of premium triplet ED optics, a relatively fast focal ratio, large precision focuser and optional field correction makes the Omegon Pro APO 104\/650 particularly attractive for astrophotography.\u003c\/p\u003e\n\n\u003cp\u003eAt the same time, its 104mm unobstructed aperture makes it an excellent visual instrument for observers who appreciate crisp, high-contrast refractor views.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:20px 0;\"\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"text-align:left;padding:12px 8px;border-bottom:2px solid #ddd;\"\u003eOptics\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eOptical design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eApochromat\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eLens design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eTriplet ED\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eED glass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eFPL-53 \/ FPL-51\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e104mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e650mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003ef\/6.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eLight-gathering capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e208\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eMaximum useful magnification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e208x\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eTube diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e114mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"text-align:left;padding:18px 8px 12px;border-bottom:2px solid #ddd;\"\u003eFocuser\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eFocuser type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eCrayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eFocuser size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e2.9\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eFine focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e1:10 reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eRotation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e360°\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eAdjustment range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e95mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eBack focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e175mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"text-align:left;padding:18px 8px 12px;border-bottom:2px solid #ddd;\"\u003eDimensions \u0026amp; Weight\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eLength, retracted\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e564mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eLength with dew shield extended\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e635mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eDew shield diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e134mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eTotal weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e6.5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"text-align:left;padding:18px 8px 12px;border-bottom:2px solid #ddd;\"\u003eArea of Application\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eAstrophotography\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eMoon \u0026amp; planets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eNebulae \u0026amp; galaxies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eNature observation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u003cstrong\u003eRecommended for\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eAdvanced users\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWhich Version Should I Choose?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWithout Field Flattener:\u003c\/strong\u003e Choose this version if you already own a suitable corrector, primarily intend to use the telescope visually, or want to build your imaging train separately.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWith 2\" Field Flattener:\u003c\/strong\u003e Choose this version if astrophotography is your priority and you want the matching field-flattener option supplied with the telescope.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener_17.jpg?v=1787648133\" alt=\"Omegon Pro APO AP 104\/650 ED astrophotography telescope\" loading=\"lazy\"\u003e\n\u003c\/p\u003e","brand":"Omegon","offers":[{"title":"With 2\" Field Flattener","offer_id":55639491281272,"sku":"47785","price":1745.99,"currency_code":"GBP","in_stock":true},{"title":"Without Field Flattener","offer_id":55639491314040,"sku":"45634","price":1531.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener.jpg?v=1787648135","url":"https:\/\/www.darkclearskies.co.uk\/products\/omegon-pro-apo-104-650-ed-triplet-refractor","provider":"Dark Clear Skies ","version":"1.0","type":"link"}